Headmaster Guo Xiaoping shows mobile phone pictures to a student at Red Ribbon School in Linfen, North China's Shanxi province, May 30, 2016. (Photo/Xinhua)
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Headmaster Guo Xiaoping shows mobile phone pictures to a student at Red Ribbon School in Linfen, North China's Shanxi province, May 30, 2016. (Photo/Xinhua)